Melissa and Zack become determined to get a good picture of Milo for school Picture Day after learning he's never had a good one due to Murphy's Law; but Chad misinterprets this as Milo being a vampire and recruits Mort to help him prove it. Meanwhile, Cavendish and Dakota get new jobs at P.I.G. (Paranormal Investigation Group) and try to capture a Yeti on camera to impress their new boss.

Milo and Amanda get the chance to be on the latter's favorite TV show, Cake 'Splosion!, an extreme kids' cooking show.

Sara starts to go insane from Dr. Doofenshmirtz constantly invading her personal space, so he goes out with the rest of the Murphy family to try new things

Learning that the local skating rink is closing down, Milo convinces his parents to pursue their dream of winning a disco skating competition they were unable to finish years ago before that happens. Elsewhere, Cavendish and Dakota are assigned to pick up seemingly ordinary lawn gnomes from a little old lady.

While heading to a mentor program she doesn't want to be a part of, Melissa ends up paired with Savannah on a mission to stop a rampaging robot that Milo and Zack accidentally built at the science fair before it destroys half of Danville.

Elliott gets hurt because of a Murphy's Law related incident, so Milo helps him with his second job as a dog walker. Meanwhile, Cavendish and Dakota discover an alien anti-gravity device and try to show it to Mr. Block for a promotion.

After being told to go home again, Diogee crosses paths with Agent P and enemy agents after he swallows a flash drive disguised as a cookie. Meanwhile, Brigette makes Doof and Sara pick up dirty clothes, so the former builds a robot hamper-inator to do the job for them.

While attending a school award ceremony, Milo attempts to get to the stage in time to collect an award he was nominated for. Meanwhile, Diogee ends up riding along with two of Danville's police officers while they attempt to catch Zippy, the world's fastest koala, and rescue one of their K-9 officers.

After Zack breaks his leg getting tangled in a harp while doing interpretive dance, all of his friends plan a "cast party". At said party, everyone shares stories of how they all broke something without Milo, Martin, or Murphy's Law around; as far as they know.

After the school football field is ruined, an event that was meant to be there gets transferred to an old dilapidated park, where Melissa and Amanda compete over who can fix it up faster. Meanwhile, Dakota and Doof deal with an alien device that turns bones into a noodle-like substance.

Milo faces down a cosmic storm made of negative probability ions, while Melissa, Zack, Cavendish, Dakota, Perry, and Doof work their way through the alien populace to save their friend.